Why doesn't project X from my old MacStarLogo run anymore?
StarLogo is similar in many ways to MacStarLogo. However, it stores
projects in its own unique format. In addition, there are language
differences between StarLogo and MacStarLogo that prevent projects
from being saved in one program and run by the other. If you would
like to translate a MacStarLogo project for use in StarLogo, open
it in StarLogo (or a text editor). Some changes will be necessary
before it will run. Consult the StarLogo documentation to find out
more about how to create projects in StarLogo. If you are having difficulty
translating your projects into StarLogo, you can email bug-starlogo@media.mit.edu with questions.
I would like to use sound with my projects. Where can I find
a sample project which demonstrates how to do this?
Sounds have been disabled in this release of StarLogo due to the
non-standard implementation of Java on different operating systems.
I'm trying to figure out the Import Picture... menu item/command.
Can you tell me more about how it works?
In order for Import Picture... to work, you need to have installed a current
version of QuickTime (QuickTime for Java) on your computer before you installed StarLogo.
(The menu item will not be displayed if QuickTime is not found.)
You can download QuickTime from http://www.apple.com/quicktime/download.
Import Picture... will load pictures of many types (such as GIF,
JPEG, PICT, and others) onto the Graphics Canvas. The picture's
colors will be transferred into the patches' colors. (Warning: Do
not load very large pictures into StarLogo, or it will run out of
memory.)
How can I run a StarLogo project on a web page?
When you are ready to save your desired project, choose "Save Project
as Web Page" from the File menu. You will first be prompted to save
the StarLogo version of this project (a .slogo file) and then to
choose a name for the .html file. To allow the applet to be run
over the web, place a copy of this starlogo.jar, your project (.slogo)
file, and your web page (.html) file all in the same directory (we
recommend that when you FTP this to your website that you choose
a binary file transfer), and then load the .html file into your
browser. On a Mac, the starlogo.jar file can be found in the StarLogo
folder. Windows users can find it inside the Internal StarLogo files
folder. We have confirmed that this applet will run on PCs using
Internet Explorer and Netscape. If you don't have the Java plug-in
for Netscape, your browser will prompt you to download it when you
try to load the applet. If you're using a Mac, you will need to
use Internet Explorer and MRJ 2.2.5 or later (Note: At the time
of this writing MRJ 2.2.5 was not currently available, but should be
soon. Please check the Apple web site http://www.apple.com/java/).
What are valid names for buttons?
When you bring up a Button Dialog to create a new button, the "Name" field
can be filled with any string of characters. If you have spaces (" ") in
this name, they are converted to the dash character ("-") internally. This
has two implications. First, it means that you can allow a procedure to call
a button by naming it and a procedure and stop a button by prepending the
word "stop" to the button name. For example,
to go
myfirstbutton ;the "Name" field of this button contains the string
"myfirstbutton"
startmy-second-button ;the "Name" field of this button contains the string
"my second button"
stopmyfirstbutton
end
The second implication is that you can create naming conflicts between
buttons and procedures. For example, if you have a procedure named
"graph-it" and a button whose "Name" field is "graph it", the button's name
is internally represented as "graph-it" and a name collision occurs. The fix
is to change the name of either the button or the procedure.
How do I resize the graphics canvas?
If you click in the white area of the StarLogo window, and then
drag your mouse over the black graphics canvas, the canvas should
become selected (little black squares will appear at the corners,
and some sizing information will appear on the grey toolbar at the
top). You can use the black squares to resize the canvas (click
and drag), and you use the slider which appears in the toolbar to
change the size of the patches.
I'm
having trouble opening StarLogo files over a network. What's wrong?
If
you have StarLogo 1.2 installed on your local computer and try to
double-click a project stored on a computer over the network, StarLogo
will try to load a file with a UNC path (UNC paths are path names
of the form \\server.name.edu\somedirectory\myfile.slogo). However,
UNC paths are not completely supported by Windows, so if you try
this StarLogo will give you an error message that the file is not
readable. Opening the StarLogo application locally from your Start
Menu and then choosing "Open File..." from within StarLogo
will allow you to access the network file without a problem.
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